Fig. 4.

Predicted atomic contributions to the total CCSD polarizability tensor for a selection of showcase molecules. The ellipsoids are aligned along the principal axes of ${\mathit{\alpha }}_i$, and their extent is proportional to the square root of the corresponding eigenvalue. The principal axes are shown, and they are colored based on whether the corresponding eigenvalues are positive (black) or negative (red). The figure key (which is not drawn to scale) has additional details.